Pella® Impervia® Series Windows and Doors

The Pella® Impervia® line blends style with durability in fiberglass windows and patio doors that, as the name infers, are impervious to practically all types of weather.

Impervia’s strength comes from Duracast®, our special fiberglass composite. It’s one of the sturdiest and most reliable materials available for fiberglass windows and patio doors1. Duracast stands up to weather from extreme heat to frigid cold, making Pella Impervia windows and exterior doors excellent for all climates.

The impressive insulating qualities of our fiberglass replacement windows and patio doors enhance your home’s livability and help conserve energy. Optional foam-insulating frames may be installed on these ENERGY STAR®-certified windows and patio doors.

Pella Impervia windows and sliding patio doors arrive prefinished with a factory powder-coat finish that stays vibrant for years—inside and out—with little care. With an array of colors to select, you’ll find windows and patio doors to reflect your home’s look, inside and out. Our environmentally friendly paint process practically removes toxic chemicals, helping the air inside your home stay chemical-free.

Pella Impervia offers quality that stands up and beauty that stands out. And to top things off, they are supported by our limited warranty—one of the strongest in the industry.2

Impervia Series
Pella® Impervia® Series Catalog

Available Window Styles

Available Door Styles

Click below to set up a complimentary, in-home consultation or visit your local Pella showroom to check out these windows and patio doors in detail.





1In testing performed in accordance with ASTM testing standards. Duracast® fiberglass composite from Pella has displayed superior performance in strength, ability to withstand heat and cold, and resistance to dents and scratches.
2Based on comparing written limited warranties of leading national wood window and wood patio door brands. See Pella written Limited Warranty for details, including exceptions and limitations, at pella.com/warranty, or contact Pella® Customer Service at 877-473-5527.
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